فهرس المقالات Zienab Gouyandeh المقاله 1 - The Tau-Collocation Method for Solving Nonlinear Integro-Differential Equations and Application of a Population Model Atefeh Armand Zienab Gouyandeh International Journal of Mathematical Modeling & Computations , العدد 5 , السنة 7 , پاییز 2017